1 /* 2 * Copyright (C) 2010 Francisco Jerez. 3 * All Rights Reserved. 4 * 5 * Permission is hereby granted, free of charge, to any person obtaining 6 * a copy of this software and associated documentation files (the 7 * "Software"), to deal in the Software without restriction, including 8 * without limitation the rights to use, copy, modify, merge, publish, 9 * distribute, sublicense, and/or sell copies of the Software, and to 10 * permit persons to whom the Software is furnished to do so, subject to 11 * the following conditions: 12 * 13 * The above copyright notice and this permission notice (including the 14 * next paragraph) shall be included in all copies or substantial 15 * portions of the Software. 16 * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 18 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 20 * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE 21 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 22 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 23 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 24 * 25 */ 26 #include "priv.h" 27 #include "ram.h" 28 29 static void 30 nv44_fb_tile_init(struct nvkm_fb *fb, int i, u32 addr, u32 size, u32 pitch, 31 u32 flags, struct nvkm_fb_tile *tile) 32 { 33 tile->addr = 0x00000001; /* mode = vram */ 34 tile->addr |= addr; 35 tile->limit = max(1u, addr + size) - 1; 36 tile->pitch = pitch; 37 } 38 39 void 40 nv44_fb_tile_prog(struct nvkm_fb *fb, int i, struct nvkm_fb_tile *tile) 41 { 42 struct nvkm_device *device = fb->subdev.device; 43 nvkm_wr32(device, 0x100604 + (i * 0x10), tile->limit); 44 nvkm_wr32(device, 0x100608 + (i * 0x10), tile->pitch); 45 nvkm_wr32(device, 0x100600 + (i * 0x10), tile->addr); 46 nvkm_rd32(device, 0x100600 + (i * 0x10)); 47 } 48 49 void 50 nv44_fb_init(struct nvkm_fb *fb) 51 { 52 struct nvkm_device *device = fb->subdev.device; 53 nvkm_wr32(device, 0x100850, 0x80000000); 54 nvkm_wr32(device, 0x100800, 0x00000001); 55 } 56 57 static const struct nvkm_fb_func 58 nv44_fb = { 59 .init = nv44_fb_init, 60 .tile.regions = 12, 61 .tile.init = nv44_fb_tile_init, 62 .tile.fini = nv20_fb_tile_fini, 63 .tile.prog = nv44_fb_tile_prog, 64 .ram_new = nv44_ram_new, 65 }; 66 67 int 68 nv44_fb_new(struct nvkm_device *device, int index, struct nvkm_fb **pfb) 69 { 70 return nvkm_fb_new_(&nv44_fb, device, index, pfb); 71 } 72